lookupnamespace.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="xmlreader.lookupnamespace" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>XMLReader::lookupNamespace</refname>
  <refpurpose>Lookup namespace for a prefix</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="XMLReader">
   <modifier>public</modifier> <type class="union"><type>string</type><type>null</type></type><methodname>XMLReader::lookupNamespace</methodname>
   <methodparam><type>string</type><parameter>prefix</parameter></methodparam>
  </methodsynopsis>
  <para>
   Lookup in scope namespace for a given prefix.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>prefix</parameter></term>
     <listitem>
      <para>
       String containing the prefix.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   The value of the namespace, or &null; if no namespace exists.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry>8.0.0</entry>
      <entry>
       This function can no longer return &false;.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

</refentry>
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